The LB Fans LCA353422 is a long cased axial fan designed for commercial ventilation applications. It comes with a three-phase, 4‑pole motor protected to IP55 and fitted with Class ‘F’ insulation, capable of operating in ambient temperatures up to 54˚C. Many models in this range offer speed adjustment through a transformer or inverter. The fan includes an IP55-rated terminal box and a factory-set adjustable polypropylene impeller. Suitable for environments with relative humidity levels up to 95%, it is manufactured to BS EN ISO 9001:2015 standards. Its performance has been tested according to BS 848 parts 1 and 2 as well as ISO 5801. This fan is supplied with a 2‑year guarantee, providing a reliable solution for efficient commercial ventilation.